Home / 159,860.20-220,528.74-103,320.04

Finding the Fourth Proportional to 159,860.20, 220,528.74 and 103,320.04

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Solution

The fourth proportional to 159,860.20, 220,528.74 and 103,320.04 is: 142,531.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,860.20 : 220,528.74 = 103,320.04 : x
  2. Step 2: Convert to fraction form
    159,860.20/220,528.74 = 103,320.04/x
  3. Step 3: Cross multiply
    159,860.20x = 220,528.74 × 103,320.04
  4. Step 4: Simplify right side
    159,860.20x = 22,785,038,237.95
  5. Step 5: Solve for x
    x = 22,785,038,237.95/159,860.20
  6. Step 6: Final answer
    x = 142,531.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.